This showed up in my delicious feed watching for other people bookmarking examples of screencasts - U of Wisconsin-Madison's CLUE: Campus Library User Education. It's built using Adobe Captivate, and doesn't include a lot of what we'd traditionally consider "screencasting", but I really like how it's seamlessly integrated into the web pages instead of offered as a series of stand-alone popup modules. It mostly makes use of transitions on static slides, as would a powerpoint presentation, but at opportune times it moves into actual animated screencasts as well. Background information about CLUE is here. They've also done a great closing credits section, but where's the fun music during this section?!? Oh yeah, and it all seems like some really good information for the undergraduate too!